Patents by Inventor Roger D. Leach

Roger D. Leach has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Pipe step
    Patent number: 5111908
    Abstract: A pipe step for providing a flat supporting surface on the top side of a horizontal pipe. The step includes a pair of channel members each having arcs cut in the flange portions thereof to meet with the pipe. U-bolts are provided for clamping the channel members to the pipe. A flat-supporting surface form from square mesh grating is bolted to and extends between the upper web portions of the channel members and provides a non-slip flat supporting surface.
    Type: Grant
    Filed: October 3, 1991
    Date of Patent: May 12, 1992
    Assignee: Atlantic Richfield Company
    Inventors: John T. Reiter, David M. Ellis, Rick D. Smith, Roger D. Leach